EP2350053A2 - Lösliche mtor-komplexe und modulatoren daraus - Google Patents

Lösliche mtor-komplexe und modulatoren daraus

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Publication number
EP2350053A2
EP2350053A2 EP09820914A EP09820914A EP2350053A2 EP 2350053 A2 EP2350053 A2 EP 2350053A2 EP 09820914 A EP09820914 A EP 09820914A EP 09820914 A EP09820914 A EP 09820914A EP 2350053 A2 EP2350053 A2 EP 2350053A2
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EP
European Patent Office
Prior art keywords
group
nitrogen
sulfur
oxygen
independently selected
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EP09820914A
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English (en)
French (fr)
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EP2350053A4 (de
EP2350053B1 (de
Inventor
Nathanael Gray
Jae Won Chang
Jianming Zhang
Carson C. Thoreen
Seong Woo Anthony Kang
David M. Sabatini
Qingsong Liu
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Dana Farber Cancer Institute Inc
Whitehead Institute for Biomedical Research
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Dana Farber Cancer Institute Inc
Whitehead Institute for Biomedical Research
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/04—Anorexiants; Antiobesity agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00

Definitions

  • the present invention relates to small molecule inhibitors of mTORC 1 and mT0RC2, syntheses thereof, and intermediates thereto.
  • the invention also provides pharmaceutical compositions comprising compounds of the present invention and methods of using the compounds in the treatment of proliferative diseases (e.g., benign neoplasms, cancers, inflammatory diseases, autoimmune diseases, diabetic retinopathy) and metabolic diseases.
  • proliferative diseases e.g., benign neoplasms, cancers, inflammatory diseases, autoimmune diseases, diabetic retinopathy
  • metabolic diseases e.g., proliferative diseases, benign neoplasms, cancers, inflammatory diseases, autoimmune diseases, diabetic retinopathy
  • the invention further provides methods of providing soluble mTORC 1 and mTORC2 complexes, and methods of using the complexes in biological assays, including high-throughput screens.
  • the mTOR protein is a large serine/threonine kinase that acts as the catalytic subunit of two functionally independent complexes called mTORC 1 and mT0RC2.
  • the mTORC 1 complex also contains the proteins Raptor and mLST8 and is regulated by nutrient availability, such as amino acids and glucose, and growth factor signaling. Many, though not all, of these signals are transduced to mTOR through the small G-protein rheb, which associates with and activates mTORC 1 directly.
  • mTORCl broadly controls the rate of protein synthesis, sensitivity to insulin through negative feedback signaling, and ribosome biogenesis.
  • mTORCl is also the target of the FDA approved drug rapamycin, which inhibits the complex by first associating with the cellular protein FKBP 12, and then binding to an mTOR domain known as the FKBP12-rapamycin binding domain (FRB).
  • FKBP12-rapamycin binding domain FKBP12-rapamycin binding domain
  • the mTORC2 complex also contains mTOR and mLST8, but includes the proteins Rictor and mSINl instead of Raptor.
  • mTORC2 is activated by insulin and other growth factors that activate the PI3K/PTEN pathway but is not affected by nutrient levels.
  • mT0RC2 is generally considered to be insensitive to rapamycin, though this may not be true under some circumstances.
  • This complex was recently shown to phosphorylate the hydrophobic motif of the AGC kinase Akt/PKB, which is a key event in the activation of Akt/PKB kinase activity.
  • Akt/PKB is considered a key regulator of cell proliferation, survival, and nutrient uptake and is thought to be the primary downstream effector of PI3K/PTEN signaling.
  • Akt/PKB is also known to be hyper-activated in a wide variety of cancers, particularly in those in which the tumor suppressor PTEN is inactivated or PDK is mutationally activated. It is also likely that mT0RC2 phosphorylates the analogous site on the AGC kinases SGK 1/2/3, which show considerable sequence similarity to Akt/PKB and are known to participate in similar processes. Efforts using cell-based screens to discover mTOR inhibitors are often hampered by difficulties in the unambiguous identification of the inhibited species. Due to the independent functions of mTORCl and mT0RC2 and their biological and medical relevance, it would be useful to find modulators of each of these complexes.
  • the present invention encompasses the recognition that small molecule modulators of mTOR are useful in the treatment of proliferative diseases and metabolic diseases. Novel compounds are provided that inhibit one or both of mTORCl and mT0RC2. The compounds may inhibit mTORCl or mT0RC2 in an ATP competitive manner. [0007] In one aspect, the invention provides compound of formula I: wherein:
  • R is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-15 arylalkyl; C 6-15 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting Of C 1-12 acyl; 6-10-membered aryl; C 7-15 arylalkyl; C 6-15 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having
  • R 3 and R 4 are independently hydrogen, halogen, or optionally substituted Cj -6 aliphatic, with the proviso that R 3 and R 4 are not taken together to form a ring; and each R is independently hydrogen, an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-15 arylalkyl; C 6-15 heteroarylalkyl; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and C 1-12 heteroaliphatic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; or two R on the same nitrogen atom are taken with the nitrogen to form a 4-7-membered heterocyclic ring having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; Cj -I2 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4
  • R 3 and R 4 are independently hydrogen, halogen, or optionally substituted C 1-6 aliphatic, with the proviso that R 3 and R 4 are not taken together to form a ring; and each R is independently hydrogen, an optionally substituted group selected from the group consisting of C 1- I 2 acyl; 6-10-membered aryl; C 7-I 5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and C 1-12 heteroaliphatic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; or two R on the same nitrogen atom are taken with the nitrogen to form a 4-7-membered heterocyclic ring having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen,
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-15 heteroarylalkyl; C 1-I2 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting Of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-I2 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-
  • R 3a is hydrogen or optionally substituted C 1-6 aliphatic; and each R is independently hydrogen, an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6- I 5 heteroarylalkyl; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and C 1-12 heteroaliphatic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; or two R on the same nitrogen atom are taken with the nitrogen to form a 4-7-membered heterocyclic ring having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. [0010] In one aspect, the invention provides compound of formula VI:
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-15 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered
  • the invention provides compound of formula VII:
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-15 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-J2 aliphatic; 5- 10-membered heteroaryl having 1 -4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-15 arylalkyl; C 6-J5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered
  • R 3a is hydrogen or optionally substituted Cj -6 aliphatic.
  • R is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-J5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; Cj -I2 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting Of C 1-I2 acyl; 6-10-membered aryl; C 7-15 arylalkyl; C 6-15 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-I2 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-
  • R 3a is hydrogen or optionally substituted C 1-6 aliphatic.
  • ⁇ denotes a single or double bond
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-15 heteroarylalkyl; Cj -12 heteroaliphatic; Cj -I2 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting Of C 1-J2 acyl; 6-10-membered aryl; C 7- J 5 arylalkyl; C 6-J5 heteroarylalkyl; Cj -12 heteroaliphatic; C 1-J2 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur
  • acyl 6-10-membered aryl; C 7-J5 arylalkyl; C 6-J5 heteroarylalkyl; Cj- I2 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and Cj-J 2 heteroaliphatic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; or two R on the same nitrogen atom are taken with the nitrogen to form a 4-7-membered heterocyclic ring having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • R 3a is hydrogen or optionally substituted Cj -6 aliphatic.
  • the invention provides pharmaceutical compositions comprising a compound of the invention and a pharmaceutically acceptable excipient.
  • the pharmaceutical composition comprises a therapeutically effective amount of the compound to treat a proliferative disease or a metabolic disease.
  • the composition comprises a compound of the invention and another antineoplastic agent.
  • the pharmaceutical composition further comprises an allosteric mTOR inhibitor.
  • the allosteric mTOR inhibitor is a rapalog.
  • the invention provides a method of treating a subject with a proliferative disease comprising administering to the subject a therapeutically effective amount of a compound of formula I.
  • the proliferative disease is selected from the group consisting of benign neoplasms, cancer, inflammatory disease, autoimmune disease, and diabetic retinopathy.
  • the proliferative disease is a solid tumor.
  • the proliferative disease is a hematological malignancy.
  • the invention provides a method of treating a metabolic disease in a subject suffering therefrom comprising administering to the subject a therapeutically effective amount of a compound of formula I.
  • the metabolic disease is diabetes.
  • the metabolic disease is metabolic syndrome, insulin resistance, obesity, or a combination thereof.
  • the invention provides a method for the modulation of one or both of mTORCl and mTORC2, the method comprising contacting said mTORCl and/or mTORC2 with an effective amount of an inventive compound.
  • the modulating agent acts as an agonist.
  • the modulating agent acts as a partial agonist.
  • the modulating agent acts as an antagonist.
  • the modulation of mTORCl/2 occurs in a cell.
  • both mTORCl and mTORC2 are inhibited.
  • mTORCl is selectively inhibited.
  • mTORC2 is selectively inhibited.
  • an effective amount of an inventive compound also inhibits one or more protein kinases, wherein said protein kinase comprises a kinase domain with similarity to Pi3K (the PIKK family of kinases).
  • a compound of the invention does not inhibit or affect other protein kinases.
  • the present disclosure provides a high-throughput method for screening one or more test compounds to identify those that exert an effect on mTORCl, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mTORCl ; mTORCl substrate; ATP; and one or more test compounds whose effect on mTORCl is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mTORCl substrate; and c) assaying for the presence or amount of the phosphorylated mTORCl substrate, thereby revealing the effect of the test compound on mTORCl .
  • a purified mTORCl substrate is S6K and the phosphorylated substrate is phospho-S6K.
  • the method further comprises the step of removing unassociated antibody from each reaction vessel.
  • the antibody is conjugated to an enzyme.
  • the method further comprises introducing a secondary ligand that binds specifically to said antibody, and wherein the step of assaying comprises assaying for bound secondary ligand.
  • the step of assaying utilizes a detection technique selected from the group consisting of chemiluminescence, fluorescence, phosphorescence, radioactivity, colorimetry, ultra-violet spectroscopy, and infra-red spectroscopy.
  • the present disclosure provides a high- throughput method for screening one or more test compounds to identify those that exert an effect on mT0RC2, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mT0RC2; mT0RC2 substrate; ATP; and one or more test compounds whose effect on mTORC2 is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mTORC2 substrate; and c) assaying for the presence or amount of the phosphorylated mTORC2 substrate, thereby revealing the effect of the test compound on mT0RC2.
  • a purified mT0RC2 substrate is Akt/PKB and the phosphorylated substrate is phospho- Akt/PKB.
  • the method further comprises the step of removing unassociated antibody from each reaction vessel.
  • the antibody is conjugated to an enzyme.
  • the method further comprises introducing a secondary ligand that binds specifically to said antibody, and wherein the step of assaying comprises assaying for bound secondary ligand.
  • the step of assaying utilizes a detection technique selected from the group consisting of chemiluminescence, fluorescence, phosphorescence, radioactivity, colorimetry, ultra-violet spectroscopy, and infra-red spectroscopy.
  • the invention provides a method for the preparation of a compound of formula V:
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; Cj -I2 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I 5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4
  • X is halogen, -OTf, or -OTs
  • X is halogen, -OTf, or -OTs
  • R 5 is C 1-6 aliphatic
  • X is halogen, -OTf, or -OTs;
  • R 5 is C 1-6 aliphatic;
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7- I 5 arylalkyl; C 6- I 5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; to form an ester E:
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-I2 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur;
  • R 5 is C 1-6 aliphatic
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and (f) oxidizing a (quinoline-3-yl)methanol of formula F under suitable conditions to provide a quinoline-3-carbaldehyde of formula G:
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-15 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • R 2 is an optionally substituted group selected from the group consisting Of Cj -I2 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6-15 heteroarylalkyl; C 1- J 2 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • R y is hydrogen or optionally substituted, straight or branched, C 1-12 aliphatic; or two R y attached to the same oxygen are taken together with their intervening atoms to form a monocyclic or bicyclic 5-8-membered ring; in the presence of a suitable metal complex to form a compound of formula I'.
  • Figure IA is an illustration of mTORCl/2 high-throughput screening method.
  • Reaction vessels containing soluble mTORCl or mT0RC2, full-length p70 S6K or AKTl, ATP and test compound in micro-well plates are incubated under suitable conditions to allow phosphorylation of S6K or AKTl by mTORCl or mT0RC2, respectively. Terminated reactions are then transferred to high-protein binding wells and probed with antibodies specific for phosphorylated S6K (T389) or AKTl (S473). Wells are then incubated with an HRP-tagged secondary antibody. The amount of bound secondary antibody is then measured ' by chemi-luminescence.
  • Figure IB shows sample data from a mTORCl screen. Control compound
  • Figure 2 A depicts intact mTORCl purified from FLAG-Raptor expressing
  • HEK-293T cells were engineered to stably express N-terminal FLAG- tagged Raptor. Total cell lysates and FLAG-purified eluate were then separated by gel electrophoresis and probed with antibodies specific for mTOR, FLAG-Raptor and mLST8, as indicated.
  • FIG. 2B shows FLAG-Raptor purifications that are highly enriched for mTORCl components.
  • FLAG-Raptor eluate was prepared as in Figure 2 A and separated by gel electrophoresis. Gel was then analyzed by silver stain. FLAG-Raptor, mTOR and mLST8 are indicated.
  • Figure 2C depicts FLAG-purified mTORCl and mTORC2 phosphorylation of p70 S6K and AKTl, respectively.
  • Figure 3 depicts the structures of compounds PI- 103 (3-(4-(4-)
  • rapamycin The mammalian target of rapamycin (mTOR) is a protein kinase that integrates nutrient and growth factor-derived signals to regulate cellular growth and survival processes. Rapamycin is a natural product that specifically inhibits mTOR signaling in a variety of cell types, resulting in immunosuppressant and antiproliferative activities. mTOR has been shown to exist in at least two separate complexes that differ in the composition of protein factors and in their sensitivity to inhibition by rapamycin. The first complex, mTOR complex 1 (mTORCl) is sensitive to inhibition by rapamycin and contains mTOR, mLST8/G ⁇ L, and raptor.
  • mTORCl The first complex, mTOR complex 1 (mTORCl) is sensitive to inhibition by rapamycin and contains mTOR, mLST8/G ⁇ L, and raptor.
  • the second complex, mTOR complex 2 (mTORC2), contains mTOR, mLST8/G ⁇ L, rictor, and mSinl, and was originally thought to be insensitive to rapamycin. As discussed below, more recent results showed that rapamycin inhibits the assembly of mTORC2 and that, in a number of cell types, prolonged rapamycin treatment reduces the levels of mT0RC2.
  • the present disclosure describes purified mTORCl and mT0RC2 complexes, assays to screen for modulators of these complexes, and a new class of small molecule modulators of mTORCl and/or mTORC2.
  • Compounds of this invention include those described generally herein and those further illustrated by the classes, subclasses, and species disclosed herein.
  • provided compounds are small molecule modulators of mTORCl, mTORC2, or other proteins that contain a kinase domain with similarity to PI3K.
  • the chemical elements are identified in accordance with the Periodic Table of the Elements, CAS version, Handbook of Chemistry and Physics, 75 th Ed. Additionally, general principles of organic chemistry are described in Organic Chemistry, Thomas Sorrell, University Science Books, Sausalito: 1999, and March 's Advanced Organic Chemistry, 5 th Ed., Ed.: Smith, M.B. and March, J., John Wiley & Sons, New York: 2001, the entire contents of which are hereby incorporated by reference. [0029] In certain embodiments, the present invention provides compounds of formula
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-J5 arylalkyl; C 6-I5 heteroarylalkyl; Cj. 12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-I2 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 0-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4
  • R 3 and R 4 are independently hydrogen, hydroxyl, alkoxy, halogen, or optionally substituted C 1-6 aliphatic, with the proviso that R 3 and R 4 are not taken together to form a ring; and each R is independently hydrogen, an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7- I 5 arylalkyl; C 6-I5 heteroarylalkyl; C 1- I2 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and C 1-12 heteroaliphatic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; or: two R on the same nitrogen atom are taken with the nitrogen to form a 4-7-membered heterocyclic ring having 1-2 heteroatoms independently selected from the
  • R 1 is an optionally substituted group selected from 6-
  • R is an optionally substituted 6-10-membered aryl group.
  • R is an optionally substituted C 7-15 arylalkyl group.
  • R 1 is an optionally substituted C 6-I5 heteroarylalkyl group.
  • R 1 is an optionally substituted Cj -I2 aliphatic group.
  • R 1 is an optionally substituted C 1- I 2 heteroaliphatic group.
  • R 1 is an optionally substituted 5-10- membered heteroaryl group having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. In certain embodiments, R 1 is an optionally substituted 6-10-membered aryl or 4-7-membered heterocyclic group having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. In certain embodiments, R 1 is an optionally subtsituted monocyclic aryl group. In certain embodiments, R 1 is an optionally substituted bicyclic aryl group. In certain embodiments, R 1 is an optionally substituted monocyclic heteroaryl group. In certain embodiments, R 1 is an optionally substituted bicyclic heteroaryl group.
  • R 1 is an optionally substituted group selected from 6- membered aryl or 6-membered heteroaryl having 1 -4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 1 is optionally substituted phenyl or pyridyl.
  • R 1 is monosubstituted phenyl.
  • R 1 is disubstituted phenyl.
  • R 1 is trisubstituted phenyl.
  • R 1 is optionally substituted phenyl.
  • R 1 is selected from the group consisting of:
  • each occurrence of R x is independently halogen, -NR 2 -OR, -SR, -SO 2 R, or an optionally substituted group selected from the group consisting of 6-10-membered aryl; C 7-I 5 arylalkyl; C 6-I 5 heteroarylalkyl; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 1 is . In some embodiments, R 1 is
  • R 1 i s screw . In some embodiments, R 1 is . In some embodiments, R 1 is . in some embodiments, R 1 is In some embodiments, R 1 is In some embodiments, R 1 is
  • R is . In some embodiments, R 1 is In some
  • R 1 is . In some embodiments, R is . In some embodiments, R is
  • R is . In some embodiments, R is
  • R 1 is monosubstituted pyridyl. In some embodiments,
  • R 1 is disubstituted pyridyl. In some embodiments, R 1 is trisubstituted pyridyl. In some embodiments, R 1 is optionally substituted pyridyl. In certain embodiments, R 1 is selected (R (
  • k is an integer from 1 to 4.
  • R 1 in some embodiments, R is
  • R is
  • R 1 is bicyclic. In some embodiments, R is . [0037] Exemplary R 1 groups are set forth in Table 1 , below.
  • R 2 is halogen. In some embodiments, R 2 is -NR 2 . In some embodiments, R 2 is -OR. In some embodiments, R 2 is -SR. In certain embodiments, R 2 is an optionally substituted C 1-J2 acyl group. In certain embodiments, R 2 is an optionally substituted 6-10-membered aryl group. In certain embodiments, R 2 is an optionally substituted C 7-I5 arylalkyl group. In certain embodiments, R 2 is an optionally substituted C 6- I 5 heteroarylalkyl group. In certain embodiments, R 2 is an optionally substituted C 1-12 aliphatic group.
  • R 2 is an optionally substituted Cj -I2 heteroaliphatic group. In certain embodiments, R 2 is an optionally substituted 5-10-membered heteroaryl group having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. In certain embodiments, R 2 is an optionally substituted 4-7-membered heterocyclic group having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 2 is -NR 2 or an optionally substituted group selected from 6-10-membered aryl or 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 2 is -NHR, wherein R is an optionally substituted group selected from 6-10- membered aryl or 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R 2 is an optionally substituted monocyclic heteroaryl group.
  • R 2 is an optionally substituted bicyclic heteroaryl group.
  • j is 1. In certain embodiments, j is 2. In certain embodiments, j is 3. In certain embodiments, j is 4. In certain embodiments, j is 1 or 2. [0042] In some embodiments, R 3 is hydrogen. In some embodiments, R 3 is halogen.
  • R 3 is optionally substituted Cj -6 aliphatic. In some embodiments, R 3 is methyl. In some embodiments, R 3 is ethyl. In some embodiments, R 3 is propyl. In some embodiments, R 3 is butyl.
  • R 4 is hydrogen. In some embodiments, R 4 is halogen.
  • R 4 is optionally substituted C 1-6 aliphatic. In some embodiments, R 4 is methyl. In some embodiments, R 4 is ethyl. In some embodiments, R 4 is propyl. In some embodiments, R 4 is butyl. In some embodiments, R 4 is hydroxy. [0044] In certain embodiments, R 3 and R 4 are both hydrogen. In certain embodiments, one of R 3 and R 4 is hydrogen. In certain embodiments, one of R 3 and R 4 is hydrogen and the other is methyl. In certain embodiments, R 3 is hydrogen and R 4 is methyl. [0045] As defined above, in certain embodiments, R 1 is optionally substituted phenyl, providing a compound of formula II-a:
  • each of j, R 2 , R 3 , and R 4 is as defined above and described in classes and subclasses herein; each occurrence of R x is independently halogen, -NR 2 -OR, -SR, -SO 2 NR 2 , or an optionally substituted group selected from the group consisting of 6-10-membered aryl; C 7-I5 arylalkyl; C 6-I 5 heteroarylalkyl; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and m is an integer from 1 to 4, inclusive; and when m is 2, 3, or 4, two R x substituents may join together to form a 5-7-membered cyclic group or a 5-7-membered heterocyclic group having 1-2 heteroatoms independently selected from
  • R 1 is optionally substituted pyridyl, providing a compound of formula II-b, II-c, or II-d: li b ii-c
  • each of j, R x , R 2 , R 3 , and R 4 is as defined above and described in classes and subclasses herein; and k is an integer from 1 to 5, inclusive; and when k is 2, 3, or 4, two R x substituents may join together to form a 5-7-membered cyclic group or a 5-7-membered heterocyclic group having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and wherein the 5-7-membered cyclic group or 5-7-membered heterocyclic group formed from two R x substituents is optionally substituted by one group selected from the group consisting of 6-10-membered aryl; 5-10-membered heteroaryl; C 7-I 5 arylalkyl; C 6-I 5 heteroarylalkyl; or Cj -I2 aliphatic.
  • each occurrence of R x is independently -NR 2 , -OR, -SO 2 NR 2 , or an optionally substituted group selected from the group consisting of 6-10-membered aryl; C 1-6 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • R x is -NR 2 .
  • R x is -OR.
  • R x is - SO 2 NR 2 . In some embodiments, R x is optionally substituted 6-10-membered aryl. In some embodiments, R x is optionally substituted C 1-6 aliphatic. In some embodiments, R x is optionally substituted 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. In some embodiments, R x is optionally substituted 6-10-membered aryl. In some embodiments, R x is optionally substituted 4-7-membered heterocyclic having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • At least one occurrence of R x is -NR 2 , wherein two R on the same nitrogen atom are taken with the nitrogen to form a 5-6-membered heterocyclic ring having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • at least one occurrence of R x is 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • each occurrence of R x is independently - NH 2 , -OR, -SO 2 NR 2 , or an optionally substituted group selected from the group consisting of 6-membered aryl; C 1-4 aliphatic; and 5-6-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur.
  • at least one R x is: wherein R' is selected from the group consisting of hydrogen, acyl, sulphonyl, aliphatic, and heteroaliphatic.
  • k is 1. In some embodiments, k is 2. In some embodiments, k is 3. In some embodiments, k is 4. In some embodiments, k is 1 or 2.
  • m is 1. In some embodiments, m is 2. In some embodiments, m is 3. In some embodiments, m is 4. In some embodiments, m is 5. In some embodiments, m is 1 or 2.
  • R 1 , R 2 , R 3 , and R 4 is as defined above and described in classes and subclasses herein.
  • each of j, R 1 , R 2 , R 3 , and R 4 is as defined above and described in classes and subclasses herein.
  • the invention provides compound of formula VII:
  • R 1 is W A/ In some embodiments, R is
  • R 1 is . In certain embodiments j is 1 , R 2 is
  • the invention provides compound of formula VIII:
  • each of j, R x , R 1 , R 2 , and R a are as defined above and described in classes and subclasses herein.
  • j is 1
  • R 2 is R >3 i a a is H
  • R' is
  • the invention provides compound of formula IX:
  • R x , R 1 , R 2 and R 3a are as defined above and described in classes and subclasses herein.
  • j is 0 or 1. In certain embodiments, j is 0. In certain embodiments, ] is 1. In certain embodiments, ] is 2.
  • the present invention provides methods for the synthesis of compounds of formula I and intermediates thereto. In some embodiments, such methods are as shown in
  • each of R 1 and R is as defined above and described in classes and subclasses herein; n is an integer from O to 4, inclusive; each occurrence of R z is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting Of C 1-12 acyl; 6-10-membered aryl; C 7-I 5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1 -4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each R is independently hydrogen, an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6-I 5 heteroarylalkyl; C
  • X is selected from the group consisting of chloro, iodo, bromo, fluoro, methanesulfonyl (mesyl), tosyl, and triflate;
  • R 5 is optionally substituted C 1-6 aliphatic
  • R y is hydrogen or optionally substituted, straight or branched, C 1-12 aliphatic; or two R y attached to the same oxygen are taken together with their intervening atoms to form a monocyclic or bicyclic 5-8-membered ring.
  • step S-I an aniline of formula A is reacted with ethyl ethoxymethylenemalonate to form a compound of formula B.
  • step S-2 a compound of formula B is chlorinated to form quinoline C.
  • Suitable reagents for effecting the chlorination are known in the art and include POCl 3 .
  • step S-3 quinoline C is substituted with an amine of formula D to form ester E.
  • ester E is reduced under suitable conditions to form a (quinoline-3-yl)methanol of formula F.
  • step S-5 a (quinoline-3-yl)methanol of formula F is oxidized under suitable conditions to provide aldehyde G.
  • step S-6 aldehyde G is cyclized to form a tricyclic compound of formula H.
  • Suitable reagents for effecting the cyclization are known in the art and include triethyl phosphonoacetate.
  • step S-7 a tricyclic compound of formula H is coupled with boronate J under suitable coupling conditions in the presence of a suitable metal complex to form a compound of formula F.
  • the coupling is a Suzuki coupling.
  • Suitable reduction conditions, oxidation conditions, coupling conditions, metals, and ligands are known in the art and include those descibed in March ⁇ supra).
  • the present invention provides a method for preparing a compound of formula I':
  • R is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7- I 5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; each occurrence of R 2 is independently halogen, -NR 2 -OR, -SR, or an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I5 arylalkyl; C 6- I 5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membere
  • X is halogen, -OTf, or -OTs
  • R 5 is C 1-6 aliphatic
  • X is halogen, -OTf, or -OTs
  • R 5 is C 1-6 aliphatic
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7 . 15 arylalkyl; C 6-I5 heteroarylalkyl; C M 2 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; to form an ester E:
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7 . 15 arylalkyl; C 6 - I5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur;
  • R 5 is Ci- 6 aliphatic
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6- 10- membered aryl; C 7-I5 arylalkyl; C 6-I5 heteroarylalkyl; C 1-12 heteroaliphatic; Cj -12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6- 10- membered aryl; C 7-I5 arylalkyl; C 6-J5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1 -4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • X is halogen, -OTf, or -OTs
  • R 1 is an optionally substituted group selected from the group consisting of 6-10- membered aryl; C 7-I5 arylalkyl; C 6-J5 heteroarylalkyl; C 1-12 heteroaliphatic; C 1-12 aliphatic; 5- 10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1-2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and
  • R 2 is an optionally substituted group selected from the group consisting of C 1-12 acyl; 6-10-membered aryl; C 7-I 5 arylalkyl; C 6-I5 heteroarylalkyl; C M 2 heteroaliphatic; C 1-12 aliphatic; 5-10-membered heteroaryl having 1-4 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; and 4-7-membered heterocyclic having 1 -2 heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur; in the presence of a suitable metal complex to form a compound of formula I'.
  • each of the aforementioned synthetic steps may be performed sequentially with isolation of each intermediate performed after each step.
  • each of steps S-I, S-2, S-3, S-4, S-5, S-6, and S-7 as depicted in Scheme I above, may be performed in a manner whereby no isolation of one or more intermediates B, C, E, F, G, or H is performed.
  • all the steps of the aforementioned synthesis may be performed to prepare the desired final product.
  • two, three, four, five, or more sequential steps may be performed to prepare an intermediate or the desired final product.
  • all the steps of the aforementioned synthesis may be performed using solution phase or solid phase synthetic techniques, or a combination thereof.
  • robotic techniques may be employed.
  • automatic liquid handling reaction stations may be used.
  • parallel synthesis may be used.
  • high-throughput synthesis may be used.
  • one-by-one synthesis may be used.
  • inventive compounds of the present invention may be used in vitro or in vivo.
  • the inventive compounds may be particularly useful in the treatment of neoplasms or other proliferative diseases in vivo.
  • inventive compounds may also be useful in the treatment of metabolic diseases in vivo.
  • inventive compounds described above may also be used in vitro for research or clinical purposes (e.g., determining the susceptibility of a patient's disease to an inventive compound, researching the mechanism of action, elucidating a cellular pathway or process).
  • compounds of the present invention are provided for use in medicine.
  • the present invention provides a method of treating a proliferative disease in a subject suffering therefrom, the method comprising administering to the subject a therapeutically effective amount of an inventive compound.
  • the proliferative disease is a benign neoplasm.
  • the proliferative disease is cancer.
  • the proliferative disease is an inflammatory disease.
  • the proliferative disease is an autoimmune disease.
  • the proliferative disease is diabetic retinopathy.
  • Compounds of the present invention may be used in the treatment of neoplasms.
  • the neoplasm is a benign neoplasm.
  • the neoplasm is a malignant neoplasm.
  • the cancer is a solid tumor.
  • Exemplary cancers that may be treated using compounds of the present invention include colon cancer, lung cancer, bone cancer, pancreatic cancer, stomach cancer, esophageal cancer, skin cancer, brain cancer, liver cancer, ovarian cancer, cervical cancer, uterine cancer, testicular cancer, prostate cancer, bladder cancer, kidney cancer, neuroendocrine cancer, breast cancer, gastric cancer, eye cancer, gallbladder cancer, laryngeal cancer, oral cancer, penile cancer, glandular tumors, rectal cancer, small intestine cancer, sarcoma, carcinoma, melanoma, urethral cancer, vaginal cancer, to name but a few.
  • tumors do not have mutations in the ras pathway.
  • the cancer is a hematological malignancy.
  • the hematological malignancy is a lymphoma.
  • the hematological malignancy is a leukemia.
  • hematological malignancies that may be treated using an inventive compound include, but are not limited to, acute lymphoblastic leukemia (ALL), acute myelogenous leukemia (AML), chronic myelogenous leukemia (CML), chronic lymphocytic leukemia (CLL), hairy cell leukemia, Hodgkin's lymphoma, non-Hodgkin's lymphoma, cutaneous T-cell lymphoma (CTCL), peripheral T-cell lymphoma (PTCL), Mantle cell lymphoma, B-cell lymphoma, acute lymphoblastic T cell leukemia (T- ALL), acute promyelocyte leukemia, and multiple myeloma.
  • ALL acute lymphoblastic leukemia
  • AML acute myelogenous leukemia
  • an inventive compound is used to treat mantle cell lymphoma. In certain embodiments, an inventive compound is used to treat neurofibromatosis I. In certain embodiments, an inventive compound is used to treat endometrial cancer. In certain embodiments, an inventive compound is used to treat renal cell carcinoma. In certain embodiments, an inventive compound is used to treat hamartoma syndrome (e.g., tuberous sclerosis complex). In certain embodiments, an inventive compound is used to treat neurofibromas.
  • the present invention provides a method for the suppression of acquired insulin resistance.
  • the suppression is from inhibition of mTORCl .
  • the suppression is from inhibition of mTORC2.
  • the invention provides methods of treating a metabolic disease in a subject suffering therefrom comprising administering to the subject a therapeutically effective amount of a compound of formula I.
  • the metabolic disease is type II diabetes.
  • the metabolic disease is metabolic syndrome.
  • the metabolic disease is insulin resistance.
  • the metabolic disease is obesity.
  • the invention provides methods of treating a disease associated with pathologic neovascularization in a subject suffering therefrom comprising administering to the subject a therapeutically effective amount of a compound of formula I.
  • the invention provides methods of treating a disease associated with angiogenesis in a subject suffering therefrom comprising administering to the subject a therapeutically effective amount of a compound of formula I.
  • compounds of the present invention are useful for inhibiting smooth muscle cell proliferation.
  • compounds of the present invention are useful for inhibiting restenosis. In certain embodiments, such effects are achieved by using a drug-eluting stent coated with a composition comprising a compound of formula I.
  • the present invention provides a method for the inhibition of one or both of mTORCl and mTORC2, the method comprising contacting said mTORCl and mTORC2 with an effective amount of an inventive compound.
  • the inhibition of one or both of mTORCl and/or mTORC2 occurs in a cell.
  • both mTORCl and mTORC2 are inhibited by an inventive compound:
  • mTORC 1 is selectively inhibited.
  • mTORC2 is selectively inhibited.
  • the relative inhibition of mTORCl to mTORC2 is 1 :10.
  • the relative inhibition of mTORCl to mTORC2 is 1 :50. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 1 :100. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 1 :1,000. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 1 : 10,000. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 10:1. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 50: 1. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 100:1.
  • the relative inhibition of mTORCl to mTORC2 is 1,000: 1. In certain embodiments, the relative inhibition of mTORCl to mTORC2 is 10,000:1. In some embodiments, the inhibition occurs via an ATP-competitive mechanism. [0084] In some embodiments, the present invention provides a method for the inhibition of one or more protein kinases, wherein said protein kinase comprises a kinase domain with similarity to Pi3K. In some embodiments, the protein kinase is a member of the PIKK family of kinases.
  • Exemplary protein kinases included but are not limited to, class I Pi3ks (alpha, beta, delta, gamma); class II Pi3ks (Pi3KC2alpha, beta, gamma); class II Pi3ks (Vps34); Pi4KIII alpha, beta; ATR; ATM; Smgl, TRAPP, and DNA-PK.
  • class I Pi3ks are inhibited.
  • class II Pi3ks are inhibited.
  • Vps34 is inhibited.
  • Pi4KIII is inhibited.
  • ATR is inhibited.
  • ATM is inhibited.
  • DNA-PK is inhibited.
  • an inventive compound inhibits a protein kinase, wherein the kinase domain has a sequence identity greater than or equal to about 70% with respect to a Pi3K kinase domain. In some embodiments, the kinase domain has a sequence identity greater than or equal to about 75% with respect to a Pi3K kinase domain. In some embodiments, the kinase domain has a sequence identity greater than or equal to about 80% with respect to a Pi3K kinase domain. In some embodiments, the kinase domain has a sequence identity greater than or equal to about 85% with respect to a Pi3K kinase domain.
  • the kinase domain has a sequence identity greater than or equal to about 90% with respect to a Pi3K kinase domain. In some embodiments, the kinase domain has a sequence identity greater than or equal to about 95% with respect to a Pi3K kinase domain.
  • mTOR is the catalytic domain for the mTORCl and mTORC2 complexes. Although it is possible to screen for modulators of mTOR kinase activity by using only the mTOR kinase domain, it is believed that the use of a full mTOR complex, as described herein, provides for the identification of molecules that modulate kinase activity directly as well as molecules acting as allosteric modulators.
  • purified soluble mTOR complexes of the present invention comprise a full mTORCl complex (mTOR, mLST8/G ⁇ L, PRAS40 and raptor).
  • purified soluble mTOR complexes of the present invention comprise a full mTORC2 complex (mTOR, mLST8/G ⁇ L, rictor, and mSinl). In certain embodiments, purified soluble mTOR complexes of the present invention comprise a mixture of the full mTORCl and mTORC2 complexes. In some embodiments, the complex comprises full length mTOR protein. In some embodiments, the complex comprises the mTOR kinase domain. In certain embodiments, the present invention provides a method for preparing purified soluble mTORCl and mTORC2 kinase complexes.
  • Complexes purified by this method can efficiently phosphorylate the native substrates S6K and Akt and are sensitive to the same inhibitors known to act in vivo.
  • the soluble complexes can be frozen and stored for extended periods of time, providing a means for maintaining consistency and reducing labor and cost across many experiments.
  • the present invention provides cell lines engineered to stably express a tagged component of an mTORCl /2 complex.
  • HEK 293T cell lines stably express an N-terminally FLAG-tagged version of GbetaL, a component of both mTORCl and mT0RC2; an N-terminally FLAG-tagged version of Protor, a component of only mTORC2; or an N-terminally FLAG-tagged version of Raptor, a component of only mTORCl.
  • the tagged component is a member of either mTORCl or mT0RC2.
  • the tagged component is a member of both mTORCl and mTORC2. In certain embodiments, the tag is FLAG. In some embodiments, one or more components is non-recombinant. In some embodiments, all non-tagged components are non- recombinant.
  • a mammalian cell line is used.
  • the mammalian cell line provides sufficient endogenous levels of non-tagged mTOR complex proteins so as to allow the formation of a full mTORCl or mTORC2 complex upon expression of the tagged component.
  • the stoichiometry of the expressed tagged component in relation to the endogenous components may affect the formation of a full mTORCl /2 complex.
  • the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 1:2.
  • the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 1 : 1.
  • the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 2:1. In certain embodiments, the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 5:1. In certain embodiments, the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 10:1. In certain embodiments, the stoichiometric ratio of the tagged component to other endogenous components of the complex is approximately 50:1.
  • the expression of the tagged component in a mammalian cell line is achieved by transfection or infection with a virus.
  • the virus is Murine Stem Cell Virus (MSCV).
  • expression of the tagged component in a mammalian cell line is achieved by transfection with a plasmid. Any suitable method of introducing a vector into mammalian cells for expression of the tagged component can be used.
  • a suitable promoter may be used to direct expression.
  • the promotor is an MSCV promoter.
  • the complex may be purified.
  • a tag-specific antibody is used.
  • FLAG specific antibody is used to immunoprecipitate mTORCl/2 complexes from cells. Soluble complex is provided by dissociating the antibody from the mTORCl/2 complex. In certain embodiments, a gel fractionation or affinity chromatography column is used. In certain embodiments, FLAG peptide is used for elution. In certain embodiments, transfection of the tagged component is stable. In some embodiments, transfection of the tagged component is transient.
  • affinity tags include, but are not limited to, 6xHis, HA tag, and Myc tag.
  • a provided soluble complex has a purity greater than
  • a provided soluble complex has a purity greater than 95%. In some embodiments, a provided soluble complex has a purity greater than 97%. In some embodiments, a provided soluble complex has a purity greater than 98%. In some embodiments, a provided soluble complex has a purity greater than 99%.
  • mTORC2 is known to regulate the protein Akt, an oncogene that is activated in many types of cancer. The present invention encompasses the recognition that it is useful to identify small molecules that inhibit or activate either complex as candidates for drug development or research tools.
  • a soluble and storable preparation of an mTOR complex such as one of the ones described herein, is a useful component of any high throughput screen of small molecule libraries. mTOR inhibition as an anti-cancer therapy
  • rapamycin has had limited clinical success as an anticancer therapy. Although some cancers respond well, including mantle cell lymphoma, endometrial cancer, and renal cell carcinoma, the lack of convenient, widely available, and validated biomarkers that correlate with efficacy make it difficult to understand what determines sensitivity to this drug. Another complicating feature of rapamycin treatment is that prolonged selective inhibition of mTORCl can paradoxically activate oncogenic pathways in some cancer cell lines. S6K regulates a potent negative feedback loop that normally promotes degradation of the protein IRSl, which normally connects insulin receptor signaling to PDK. Selective inhibition of mTORC 1 relieves this suppression of insulin signaling and may have the counter-productive effect of hyperactivating the cell proliferation and survival pathways that lay downstream of PDK.
  • rapamycin treatment inhibits mT0RC2 as well as mTORCl in at least some cell types, and that this effect may account for some of the successes of rapamycin as an anti-cancer drug.
  • This inhibition appears to occur in two different ways. The first is that prolonged rapamycin treatment of some cancer cell lines interferes with mT0RC2 assembly, presumably by physically disrupting the mTOR-Rictor interaction. The second is that high but clinically-relevant concentrations of rapamycin can inhibit mTOR directly even in the absence of FKBP 12.
  • mT0RC2 inhibition can account for rapamycin' s uneven anti-cancer effects, it is possible that pathways downstream of mT0RC2 are much more strongly associated with tumorigenesis than those that are downstream of mTORCl.
  • compounds of the present invention are useful as general mTOR, mTORC 1 -specific, or mTORC2-specific inhibitors to modulate of these pathways.
  • mTORCl may possess rapamycin-insensitive functions.
  • ATP-competitive mTOR inhibition suppresses these functions.
  • the ATP-competitive mTOR inhibition is more strongly antiproliferative than rapamycin alone.
  • the present invention provides a method of inhibiting rapamycin-insentive features of mTORCl.
  • mTORCl /2 complex maintains regulation in vitro when purified from serum-starved or stimulated cells, indicating the existence of important regulatory mechanisms. Assays that fail to use intact mTORCl /2 are therefore unable to identify compounds that engage or interfere with Raptor- or Rictor-dependent regulatory mechanisms. Similarly, rheb can only activate intact mTORCl. Assays that fail to use mTORCl cannot identify compounds that specifically interfere with this activating event. [0098] The substrate used in mTORCl /2 assays also plays an important role in measuring mTORCl /2-specific activity. Akt/PKB and S6K are both members of the AGC family of kinases and share many structural features.
  • Akt/PKB has an additional N-terminal pleckstrin-homology domain
  • S6K has an additional C-termain domain that is often referred to as the auto-inhibitory domain.
  • mTORCl can only phosphorylate S6K
  • mTORC2 can only phosphorylate Akt/PKB.
  • both complexes are able to phosphorylate a C-terminal truncation of S6K, indicating that interactions between each mTOR complex and domains in their respective substrates are involved in normal regulatory mechanisms. Therefore, assays that use truncated protein or peptide substrates may be limited in the ability to identify compounds that interfere with these mechanisms.
  • Assays and methods provided by the present invention may be used to identify compounds that modulate mTORC 1 and/or mTORC2 activity.
  • the present invention further provides methods for screening test compounds to identify those that exert an effect on mTORCl or mTORC2.
  • the methods are carried out in high-throughput fashion in multi-well plates, including, but not limited to, 24-well, 48-well, 96-well, 384-well, and 1536-well plate formats.
  • the screen is used to identify compounds that specifically exert an effect on mTORCl.
  • the screen is used to identify compounds that specifically exert an effect on mT0RC2.
  • the present invention provides a method for screening one or more test compounds to identify those that exert an effect on mTORCl, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mTORCl; mTORCl substrate; ATP; and one or more test compounds whose effect on mTORCl is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mTORCl substrate; and c) assaying for the presence or amount of the phosphorylated mTORCl substrate, thereby revealing the effect of the test compound on mTORCl .
  • a mTORCl substrate is any substrate that is phosphorylated by mTORCl .
  • a purified mTORCl substrate is S6K.
  • a phosphorylated substrate is phospho-S6K.
  • a purified mTORCl substrate comprises a fragment of mTORCl, wherein the fragment has at least 20 amino acids and has greater than 80 % sequence homology with S6K. In some embodiments, the fragment has greater than 90 % sequence homology with S6K. In some embodiments, the fragment has greater than 95 % sequence homology with S6K. In some embodiments, the fragment has greater than 98 % sequence homology with S6K.
  • the fragment has greater than 99 % sequence homology with S6K. In some embodiments, the fragment comprises at least the phosphorylation site of S6K.
  • a mTORCl substrate is a variant of S6K having greater than 80 % sequence homology with S6K. In some embodiments, a mTORCl substrate is a variant of S6K having greater than 90 % sequence homology with S6K. In some embodiments, a mTORCl substrate is a variant of S6K having greater than 95 % sequence homology with S6K. In some embodiments, a mTORCl substrate is a variant of S6K having greater than 98 % sequence homology with S6K.
  • a mTORCl substrate is a variant of S6K having greater than 99 % sequence homology with S6K.
  • a purified mTORCl substrate is p70 S6K.
  • a purified mTORCl substrate is p85 S6K.
  • a purified mTORCl substrate is S6K2.
  • a purified mTORCl substrate is 4E-BP1.
  • an mTORCl substrate is labeled with a fluorophore (e.g., fluorescein, GFP, etc.).
  • the mTORCl complex is soluble. In some embodiments, the mTORCl complex has been isolated.
  • the present invention provides a method for screening one or more test compounds to identify those that exert an effect on mTORC2, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mTORC2; mTORC2 substrate; ATP; and one or more test compounds whose effect on mTORC2 is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mTORC2 substrate; and c) assaying for the presence or amount of the phosphorylated mTORC2 substrate, thereby revealing the effect of the test compound on mT0RC2.
  • a mTORC2 substrate is any substrate that is phosphorylated by mTORC2.
  • a purified mTORC2 substrate is Akt/PKB.
  • a phosphorylated substrate is phospho-Akt/PKB.
  • a purified mTORC2 substrate comprises a fragment of mTORC2, wherein the fragment has at least 20 amino acids and has greater than 80 % sequence homology with Akt/PKB. In some embodiments, the fragment has greater than 90 % sequence homology with Akt/PKB. In some embodiments, the fragment has greater than 95 % sequence homology with Akt/PKB.
  • the fragment has greater than 98 % sequence homology with Akt/PKB. In some embodiments, the fragment has greater than 99 % sequence homology with Akt/PKB. In some embodiments, the fragment comprises at least the phosphorylation site of Akt/PKB.
  • a mTORC2 substrate is a variant of Akt/PKB having greater than 80 % sequence homology with Akt/PKB. In some embodiments, a mTORC2 substrate is a variant of Akt/PKB having greater than 90 % sequence homology with Akt/PKB. In some embodiments, a mTORC2 substrate is a variant of Akt/PKB having greater than 95 % sequence homology with Akt/PKB. In some embodiments, a mTORC2 substrate is a variant of Akt/PKB having greater than 98 % sequence homology with Akt/PKB.
  • a mTORC2 substrate is a variant of Akt/PKB having greater than 99 % sequence homology with Akt/PKB.
  • a purified mTORC2 substrate is Aktl .
  • a purified mTORC2 substrate is Akt2.
  • a purified mTORC2 substrate is Akt3.
  • Other non-limiting examples of mTORC2 substrates are SGKl, SGK2, and SGK3.
  • an mTORC2 substrate is labeled with a fluorophore (e.g., fluorescein, GFP, etc.).
  • the mTORC2 complex is soluble. In some embodiments, the mTORC2 complex has been isolated.
  • the methods described above further comprise a step of immobilizing proteins from the reaction vessels.
  • the step of immobilizing proteins comprises transferring the contents of the reaction vessels to a plate comprising a plurality of vessels.
  • the transfer can be performed in a variety of ways, including both manual or robotic pipeting or pin tip transferring, to name but a few.
  • multi-well plates may be used, including, but not limited to, 24-well, 48-well, 96-well, 384-well, and 1536-well plates.
  • protein-immobilizing materials may be used in the aforementioned methods.
  • the protein-immobilizing material is part of the plate.
  • the plate is a high-protein binding plate.
  • the high-protein binding plate is constructed of a material comprising polystyrene.
  • the protein binding may be through specific or non-specific interactions.
  • the protein-immobilizing material comprises antibodies.
  • the protein-immobilizing material comprises antibody fragments.
  • the antibodies or antibody fragments are specific for a phosphorylated mTORCl/2 substrate as described above.
  • the step of immobilizing proteins comprises the introduction of a protein-immobilizing surface into the reaction vessels.
  • the protein-immobilizing surface is a synthetic organic polymer.
  • the synthetic organic polymer comprises polystyrene.
  • the step of assaying utilizes a detection technique selected from the group consisting of chemiluminescence, fluorescence, phosphorescence, radioactivity, colorimetry, ultra-violet spectroscopy, and infra-red spectroscopy.
  • the step of assaying utilizes chemiluminescence.
  • the step of assaying utilizes a fluorescent marker.
  • the step of assaying utilizes a radioisotype.
  • each of the methods described above may employ one or more antibodies or antibody fragments.
  • the antibody or antibody fragment is characterized in that is associates with a phosphorylated mTORCl/2 substrate whose presence or amount reveals the effect of a given test compound on mTORCl/2 kinase activity.
  • the step of assaying for the presence or amount of the phosphorylated mTORCl/2 substrate comprises assaying for association between an antibody and a phosphorylated mTORCl/2 substrate in the vessels.
  • an antibody is contacted with soluble proteins.
  • an antibody is contacted with immobilized proteins.
  • an antibody is conjugated to an enzyme.
  • each of the methods described above may further comprise a step of introducing a secondary ligand that binds specifically to the antibody specific for phosphorylated mTORCl or mTORC2 substrate, and wherein the step of assaying comprises assaying for bound secondary ligand.
  • the secondary ligand is an antibody.
  • the secondary ligand is an antibody fragment.
  • the secondary ligand is conjugated to an enzyme.
  • the enzyme conjugated to either a primary or secondary antibody is horse radish peroxidase.
  • the enzyme conjugated to either a primary or secondary antibody is alkaline phosphatase.
  • the enzyme conjugated to either a primary or secondary antibody is glucose oxidase.
  • the secondary ligand is biotinylated.
  • the secondary ligand is conjugated to a fluorescent marker (e.g., fluorescein, phycoerythrin, Texas Red, AMCA, etc.).
  • the secondary ligand is conjugated to a radioisotope (e.g., 125 I, 1 1 1 In, etc.).
  • each of the methods described above may further comprise the introduction of Rheb into the reaction vessels in step (a).
  • Rheb functions as an activator of mTOR.
  • each of the described above may further comprise a step of removing unassociated primary and/or secondary antibody from each reaction vessel.
  • a metal chelator may be added in step (b) or (c) of the methods described above.
  • the metal chelator quenches kinase activity.
  • the chelator is EDTA.
  • a primary or secondary antibody used in the methods described above is labeled with a lanthanide.
  • the lanthanide is turbium.
  • One of ordinary skill in the art will recognize that in cases wherein the substrate is labeled with a fluorophore, association with a lanthanide labeled antibody will allow for FRET-based detection of phosphorylation. While not wishing to be bound by any particular theory, it is believed that a lanthanide labeled detection system allows background signal to dissipate due to the delayed fluorescence property of lanthanides.
  • the present invention provides a method for screening one or more test compounds to identify those that exert an effect on mTORCl, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mTORCl ; mTORCl substrate; ATP; and one or more test compounds whose effect on mTORCl is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mTORCl substrate; c) immobilizing proteins from the reaction vessels; d) contacting said immobilized proteins with an antibody characterized in that it associates with a phosphorylated mTORC 1 substrate whose presence or amount reveals the effect of a given test compound on mTORCl kinase activity; and e) assaying for association between the antibody and the phosphorylated mTORCl substrate in the vessels to assess the presence or amount of the phosphorylated mTORCl substrate, thereby revealing
  • the present invention provides a method for screening one or more test compounds to identify those that exert an effect on mTORC2, the method comprising the steps of: a) introducing into each of a plurality of reaction vessels: purified mTORC2; mTORC2 substrate; ATP; and one or more test compounds whose effect on mTORC2 is to be evaluated; b) incubating the vessels under suitable conditions and for a time sufficient to allow phosphorylation of the mT0RC2 substrate; c) immobilizing proteins from the reaction vessels; d) contacting said immobilized proteins with an antibody characterized in that it associates with a phosphorylated mT0RC2 substrate whose presence or amount reveals the effect of a given test compound on mT0RC2 kinase activity; and e) assaying for association between the antibody and the phosphorylated mT0RC2 substrate in the vessels to assess the presence or amount of the phosphorylated mT0RC2 substrate,
  • the methods described above may be done in high- throughput fashion.
  • Certain compounds of the present invention may exist in particular geometric or stereoisomeric forms.
  • the present invention contemplates all such compounds, including cis- and /rcms-isomers, E- and Z-isomers, R- and S-enantiomers, diastereomers, (D)-isomers, (L)-isomers, (-)- and (+)-isomers, racemic mixtures thereof, and other mixtures thereof, as falling within the scope of the invention.
  • Additional asymmetric carbon atoms may be present in a substituent such as an alkyl group. All such isomers, as well as mixtures thereof, are intended to be included in this invention.
  • a particular enantiomer of a compound of the present invention may be prepared by asymmetric synthesis, chiral chromatography, or by derivation with a chiral auxiliary, where the resulting diastereomeric mixture is separated and the auxiliary group cleaved to provide the pure desired enantiomers.
  • the molecule contains a basic functional group, such as amino, or an acidic functional group, such as carboxyl, diastereomeric salts are formed with an appropriate optically-active acid or base, followed by resolution of the diastereomers thus formed by fractional crystallization or chromatographic means well known in the art, and subsequent recovery of the pure enantiomers.
  • Isomeric mixtures containing any of a variety of isomer ratios may be utilized in accordance with the present invention. For example, where only two isomers are combined, mixtures containing 50:50, 60:40, 70:30, 80:20, 90:10, 95:5, 96:4, 97:3, 98:2, 99:1, or 100:0 isomer ratios are all contemplated by the present invention. Those of ordinary skill in the art will readily appreciate that analogous ratios are contemplated for more complex isomer mixtures.
  • the compounds, as described herein, may be substituted with any number of substituents or functional moieties.
  • substituted whether preceded by the term “optionally” or not, and substituents contained in formulas of this invention, refer to the replacement of hydrogen radicals in a given structure with the radical of a specified substituent.
  • the substituent may be either the same or different at every position.
  • substituted is contemplated to include all permissible substituents of organic compounds.
  • the permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, aromatic and non-aromatic substituents of organic compounds.
  • heteroatoms such as nitrogen may have hydrogen substituents and/or any permissible substituents of organic compounds described herein which satisfy the valencies of the heteroatoms.
  • this invention is not intended to be limited in any manner by the permissible substituents of organic compounds.
  • Combinations of substituents and variables envisioned by this invention are preferably those that result in the formation of stable compounds useful in inhibiting mTORCl/2.
  • stable as used herein, preferably refers to compounds which possess stability sufficient to allow manufacture and which maintain the integrity of the compound for a sufficient period of time to be detected and preferably for a sufficient period of time to be useful for the purposes detailed herein.
  • R is alkyl, alkenyl, alkynyl, aryl, carbocylic, heterocyclic, or aromatic heterocyclic.
  • An example of an acyl group is acetyl.
  • aliphatic as used herein, includes both saturated and unsaturated, straight chain (i.e., unbranched), branched, acyclic, cyclic, or polycyclic aliphatic hydrocarbons, which are optionally substituted with one or more functional groups.
  • alkyl includes straight, branched and cyclic alkyl groups.
  • alkenyl alkynyl
  • alkynyl cycloalkyl
  • cycloalkenyl cycloalkynyl moieties.
  • alkyl includes straight, branched and cyclic alkyl groups.
  • alkenyl alkynyl
  • alkynyl and the like.
  • alkyl alkenyl
  • alkynyl encompass both substituted and unsubstituted groups.
  • lower alkyl is used to indicate those alkyl groups (cyclic, acyclic, substituted, unsubstituted, branched or unbranched) having 1-6 carbon atoms.
  • alkyl refers to saturated, straight- or branched-chain hydrocarbon radicals derived from a hydrocarbon moiety containing between one and twenty carbon atoms by removal of a single hydrogen atom.
  • the alkyl group employed in the invention contains 1-12 carbon atoms.
  • the alkyl group employed contains 1-8 carbon atoms.
  • the alkyl group contains 1-6 carbon atoms.
  • the alkyl group contains 1-4 carbons.
  • alkyl radicals include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, sec-butyl, sec-pentyl, iso-pentyl, tert-butyl, n-pentyl, neopentyl, n-hexyl, sec-hexyl, n-heptyl, n-octyl, n-decyl, n-undecyl, dodecyl, and the like, which may bear one or more substituents.
  • aryl and heteroaryl refer to stable mono- or polycyclic, heterocyclic, polycyclic, and polyheterocyclic unsaturated moieties having preferably 3-14 carbon atoms, each of which may be substituted or unsubstituted.
  • Substituents include, but are not limited to, any of the previously mentioned substituents, i. e. , the substituents recited for aliphatic moieties, or for other moieties as disclosed herein, resulting in the formation of a stable compound.
  • aryl refers to a mono- or bicyclic carbocyclic ring system having one or two aromatic rings including, but not limited to, phenyl, naphthyl, tetrahydronaphthyl, indanyl, indenyl, and the like.
  • heteroaryl refers to a cyclic aromatic radical having from five to ten ring atoms of which one ring atom is selected from the group consisting of S, O, and N; zero, one, or two ring atoms are additional heteroatoms independently selected from the group consisting of S, O, and N; and the remaining ring atoms are carbon, the radical being joined to the rest of the molecule via any of the ring atoms, such as, for example, pyridyl, pyrazinyl, pyrimidinyl, pyrrolyl, pyrazolyl, imidazolyl, thiazolyl, oxazolyl, isooxazolyl, thiadiazolyl,oxadiazolyl, thiophenyl, furanyl, quinolinyl, isoquinolinyl, and the like.
  • aryl and heteroaryl groups can be unsubstituted or substituted, wherein substitution includes replacement of one, two, three, or more of the hydrogen atoms thereon independently with any one or more of the following moieties including, but not limited to: aliphatic; heteroaliphatic; aryl; heteroaryl; arylalkyl; heteroarylalkyl; alkoxy; aryloxy; heteroalkoxy; heteroaryloxy; alkylthio; arylthio; heteroalkylthio; heteroarylthio; -F; -Cl; -Br; -I; -OH; -NO 2 ; -CN; -CF 3 ; -CH 2 CF 3 ; -CHCl 2 ; - CH 2 OH; -CH 2 CH 2 OH; -CH 2 NH 2 ; -CH 2 SO 2 CH 3 ; -C(O)R x ; -CO 2 (R x
  • carboxylic acid refers to a group of formula -CO 2 H.
  • halo and halogen refer to an atom selected from the group consisting of fluorine, chlorine, bromine, and iodine.
  • heteroaliphatic refers to aliphatic moieties that contain one or more oxygen, sulfur, nitrogen, phosphorus, or silicon atoms, e.g., in place of carbon atoms.
  • Heteroaliphatic moieties may be branched, unbranched, cyclic or acyclic and include saturated and unsaturated heterocycles such as morpholino, pyrrolidinyl, etc.
  • heteroaliphatic moieties are substituted by independent replacement of one or more of the hydrogen atoms thereon with one or more moieties including, but not limited to aliphatic; heteroaliphatic; aryl; heteroaryl; arylalkyl; heteroarylalkyl; alkoxy; aryloxy; heteroalkoxy; heteroaryloxy; alkylthio; arylthio; heteroalkylthio; heteroarylthio; -F; - Cl; -Br; -I; -OH; -NO 2 ; -CN; -CF 3 ; -CH 2 CF 3 ; -CHCl 2 ; -CH 2 OH; -CH 2 CH 2 OH; -CH 2 NH 2 ; - CH 2 SO 2 CH 3 ; -C(O)R x ; -CO 2 (R x ); -CON(R X ) 2 ; -OC(O)R x ; -OC
  • heterocyclic refers to an aromatic or non-aromatic, partially unsaturated or fully saturated, 3- to 10-membered ring system, which includes single rings of 3 to 8 atoms in size and bi- and tri-cyclic ring systems which may include aromatic five- or six-membered aryl or aromatic heterocyclic groups fused to a non-aromatic ring.
  • heterocyclic rings include those having from one to three heteroatoms independently selected from the group consisting of oxygen, sulfur, and nitrogen, in which the nitrogen and sulfur heteroatoms may optionally be oxidized and the nitrogen heteroatom may optionally be quaternized.
  • heterocyclic refers to a non-aromatic 5-, 6-, or 7-membered ring or a polycyclic group wherein at least one ring atom is a heteroatom selected from the group consisting of O, S, and N (wherein the nitrogen and sulfur heteroatoms may be optionally oxidized), including, but not limited to, a bi- or tri-cyclic group, comprising fused six-membered rings having between one and three heteroatoms independently selected from the group consisting of the oxygen, sulfur, and nitrogen, wherein (i) each 5-membered ring has O to 2 double bonds, each 6-membered ring has O to 2 double bonds, and each 7-membered ring has O to 3 double bonds, (ii) the nitrogen and sulfur heteroatoms may be optionally oxidized, (iii) the nitrogen heteroatom may optionally be quaternized, and (iv) any of the above heterocyclic rings may be fused to an aryl or heteroaryl ring.
  • aromatic heterocyclic refers to a cyclic aromatic radical having from five to ten ring atoms of which one ring atom is selected from the group consisting of sulfur, oxygen, and nitrogen; zero, one, or two ring atoms are additional heteroatoms independently selected from the group consisting of sulfur, oxygen, and nitrogen; and the remaining ring atoms are carbon, the radical being joined to the rest of the molecule via any of the ring atoms, such as, for example, pyridyl, pyrazinyl, pyrimidinyl, pyrrolyl, pyrazolyl, imidazolyl, thiazolyl, oxazolyl, isooxazolyl, thiadiazolyl, oxadiazolyl, thiophenyl, furanyl, quinolinyl, isoquinolinyl, and the like.
  • Aromatic heterocyclic groups can be unsubstituted or substituted with substituents selected from the group consisting of branched and unbranched alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, thioalkoxy, amino, alkylamino, dialkylamino, trialkylamino, acylamino, cyano, hydroxy, halo, mercapto, nitro, carboxyaldehyde, carboxy, alkoxycarbonyl, and carboxamide.
  • heterocyclic and aromatic heterocyclic groups that may be included in the compounds of the invention include: 3-methyl-4-(3-methylphenyl)piperazine, 3 methylpiperidine, 4-(bis-(4-fluorophenyl)methyl)piperazine, 4-(diphenylmethyl)piperazine, 4-(ethoxycarbonyl)piperazine, 4-(ethoxycarbonylmethyl)piperazine, 4- (phenylmethyl)piperazine, 4-(l-phenylethyl)piperazine, 4-(l,l- dimethylethoxycarbonyl)piperazine, 4-(2-(bis-(2-propenyl) amino)ethyl)piperazine, 4-(2- (diethylamino)ethyl)piperazine, 4-(2-chlorophenyl)piperazine, 4-(2-cyanophenyl)piperazine, 4-(2-ethoxyphenyl)piperazine, 4-(2-ethylphenyl)piperazine, 4-(2-ethy
  • arylalkyl refers to alkyl groups in which a hydrogen atom has been replaced with an aryl group.
  • groups include, without limitation, benzyl, cinnamyl, and dihyrocinnamyl.
  • heteroatom means one or more of oxygen, sulfur, nitrogen, phosphorus, or silicon (including, any oxidized form of nitrogen, sulfur, phosphorus, or silicon; the quaternized form of any basic nitrogen or; a substitutable nitrogen of a heterocyclic ring, for example N (as in 3,4-dihydro-2H-pyrrolyl), NH (as in pyrrolidinyl) or
  • unsaturated means that a moiety has one or more units of unsaturation.
  • partially unsaturated refers to a ring moiety that includes at least one double or triple bond.
  • partially unsaturated is intended to encompass rings having multiple sites of unsaturation, but is not intended to include aryl or heteroaryl moieties, as herein defined.
  • structures depicted herein are also meant to include compounds that differ only in the presence of one or more isotopically enriched positions of the compound.
  • compounds having the present structures including the replacement of hydrogen by deuterium or tritium, or the replacement of a carbon by a
  • 13 C- or 14 C-enriched carbon are within the scope of this invention. Such compounds are useful, for example, as analytical tools, as probes in biological assays, or as therapeutic agents in accordance with the present invention.
  • protecting group it is meant that a particular functional moiety, e.g., O, S, or N, is masked or blocked, permitting, if desired, a reaction to be carried out selectively at another reactive site in a multifunctional compound.
  • Suitable protecting groups are well known in the art and include those described in detail in Protecting Groups in Organic Synthesis, T. W. Greene and P. G. M. Wuts, 3 rd edition, John Wiley & Sons, 1999, the entirety of which is incorporated herein by reference.
  • a protecting group reacts selectively in good yield to give a protected substrate that is stable to the projected reactions; the protecting group is preferably selectively removable by readily available, preferably nontoxic reagents that do not attack the other functional groups; the protecting group forms a separable derivative (more preferably without the generation of new stereogenic centers); and the protecting group will preferably have a minimum of additional functionality to avoid further sites of reaction.
  • oxygen, sulfur, nitrogen, and carbon protecting groups may be utilized.
  • hydroxyl protecting groups include methyl, methoxylmethyl (MOM), methylthiomethyl (MTM), t-butylthiomethyl, (phenyldimethylsilyl)methoxymethyl (SMOM), benzyloxymethyl (BOM), p- methoxybenzyloxymethyl (PMBM), (4-methoxyphenoxy)methyl (p-AOM), guaiacolmethyl (GUM), t-butoxymethyl, 4-pentenyloxymethyl (POM), siloxymethyl, 2- methoxyethoxymethyl (MEM), 2,2,2-trichloroethoxymethyl, bis(2-chloroethoxy)methyl, 2- (trimethylsilyl)ethoxymethyl (SEMOR), tetrahydropyranyl (THP), 3- bromotetrahydropyranyl, tetrahydrothiopyranyl, 1-methoxycyclohexyl, 4- methoxytetrahydropyranyl (MTHP), 4-
  • the protecting groups include methylene acetal, ethylidene acetal, 1 -t-butylethylidene ketal, 1 -phenylethylidene ketal, (4- methoxyphenyl)ethylidene acetal, 2,2,2-trichloroethylidene acetal, acetonide, cyclopentylidene ketal, cyclohexylidene ketal, cycloheptylidene ketal, benzylidene acetal, p- methoxybenzylidene acetal, 2,4-dimethoxybenzylidene ketal, 3,4-dimethoxybenzylidene acetal, 2-nitrobenzylidene acetal, methoxymethylene acetal, ethoxymethylene acetal, dimethoxymethylene ortho ester, 1-methoxy ethyl
  • Amino-protecting groups include methyl carbamate, ethyl carbamante, 9-fluorenylmethyl carbamate (Fmoc), 9-(2-sulfo)fluorenylmethyl carbamate, 9-(2,7-dibromo)fluoroenylmethyl carbamate, 2,7-di-/-butyl-[9-( 10,10-dioxo- 10, 10, 10, 10-tetrahydrothioxanthyl)]methyl carbamate (DBD-Tmoc), 4-methoxyphenacyl carbamate (Phenoc), 2,2,2-trichloroethyl carbamate (Troc), 2-trimethylsilylethyl carbamate (Teoc), 2-phenylethyl carbamate (hZ), 1- (l-adamantyl)-1-methylethyl carbamate (Adpoc), l,l-dimethyl-2-haloethyl carbamate, 1,1- dimethyl-2
  • protecting groups are detailed herein, however, it will be appreciated that the present invention is not intended to be limited to these protecting groups; rather, a variety of additional equivalent protecting groups can be readily identified using the above criteria and utilized in the method of the present invention. Additionally, a variety of protecting groups are described by Greene and Wuts (supra).
  • phrases "pharmaceutically acceptable” is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.
  • pharmaceutically acceptable carrier means a pharmaceutically-acceptable material, composition or vehicle, such as a liquid or solid filler, diluent, excipient, or solvent encapsulating material, involved in carrying or transporting the subject compound from one organ, or portion of the body, to another organ, or portion of the body.
  • Each carrier must be “acceptable” in the sense of being compatible with the other ingredients of the formulation and not injurious to the patient.
  • materials which can serve as pharmaceutically acceptable carriers include: sugars, such as lactose, glucose and sucrose; starches, such as corn starch and potato starch; cellulose, and its derivatives, such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; talc; excipients, such as cocoa butter and suppository waxes; oils, such as peanut oil, cottonseed oil, safflower oil, sesame oil, olive oil, corn oil and soybean oil; glycols, such as propylene glycol; polyols, such as glycerin, sorbitol, mannitol and polyethylene glycol; esters, such as ethyl oleate and ethyl laurate; agar; buffering agents, such as magnesium hydroxide and
  • the term "pharmaceutically acceptable salt” refers to those salts which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of humans and lower animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio.
  • Pharmaceutically acceptable salts are well known in the art. For example, S. M. Berge et al., describe pharmaceutically acceptable salts in detail in J. Pharmaceutical Sciences, 1977, 66, 1-19, incorporated herein by reference.
  • Pharmaceutically acceptable salts of the compounds of this invention include those derived from suitable inorganic and organic acids and bases.
  • Examples of pharmaceutically acceptable, nontoxic acid addition salts are salts of an amino group formed with inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or malonic acid or by using other methods used in the art such as ion exchange.
  • inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid
  • organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or malonic acid or by using other methods used in the art such as ion exchange.
  • salts include adipate, alginate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate, hexanoate, hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2- naphthalenesulfonate, nicotinate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate
  • the compounds of the present invention may contain one or more acidic functional groups and, thus, are capable of forming pharmaceutically acceptable salts with pharmaceutically acceptable bases.
  • pharmaceutically acceptable salts refers to the relatively non-toxic, inorganic and organic base addition salts of compounds of the present invention. These salts can likewise be prepared in situ in the administration vehicle or the dosage form manufacturing process, or by separately reacting the purified compound in its free acid form with a suitable base, such as the hydroxide, carbonate or bicarbonate of a pharmaceutically acceptable metal cation, with ammonia, or with a pharmaceutically acceptable organic primary, secondary, tertiary, or quaternary amine.
  • Salts derived from appropriate bases include alkali metal, alkaline earth metal, ammonium and N + (C i -4 alky I) 4 salts.
  • Representative alkali or alkaline earth metal salts include sodium, lithium, potassium, calcium, magnesium, and the like.
  • Further pharmaceutically acceptable salts include, when appropriate, nontoxic ammonium, quaternary ammonium, and amine cations formed using counterions such as halide, hydroxide, carboxylate, sulfate, phosphate, nitrate, loweralkyl sulfonate and aryl sulfonate.
  • Organic amines useful for the formation of base addition salts include ethylamine, diethylamine, ethylenediamine, ethanolamine, diethanolamine, piperazine and the like. See, for example, Berge et al., supra.
  • parenteral administration and “administered parenterally” as used herein means modes of administration other than enteral and topical administration, usually by injection, and includes, without limitation, intravenous, intramuscular, intraarterial, intrathecal, intracapsular, intraorbital, intracardiac, intradermal, intraperitoneal, transtracheal, subcutaneous, subcuticular, intraarticulare, subcapsular, subarachnoid, intraspinal and intrasternal injection and infusion.
  • soluble complex refers to a protein complex that is not bound to another protein or biological macromolecule which is non-essential for proper functioning of the protein complex.
  • the protein complex is not bound to an antibody.
  • the protein complex is not bound to an antibody fragment.
  • the protein complex is not bound to a membrane.
  • allosteric mTOR inhibitor refers to a molecule having an inhibitory effect on mTOR kinase activity without directly perturbing the kinase active site.
  • the allosteric mTOR inhibitor binds to mTOR.
  • the allosteric mTOR inhibitor binds to a component of mTORCl/2 other than mTOR.
  • mTORCl/2 refers to the mTORCl complex, the mTORC2 complex, or both.
  • full mTORCl complex refers to an mTOR complex comprising at least mTOR, mLST8, and Raptor.
  • a full mTORCl complex may contain other proteins as well, as described herein.
  • full mTORC2 complex refers to an mTOR complex comprising at least mTOR, mLST8, and Rictor.
  • a full mTORC2 complex may contain other proteins as well, as described herein.
  • rapalog refers to analogs, homologs, derivatives and other compounds related structurally to rapamycin.
  • a substance and/or entity is "pure” if it is substantially free of other components. Such relative assessments of components can be determined by molar ratio, dry weight, volume, various analytical techniques (e.g., photometry, spectrometry, spectrophotometry, spectroscopy), etc.
  • a preparation that contains more than about 75% of a particular substance and/or entity is considered to be a pure preparation.
  • a substance and/or entity is at least 80%, 85%, 90%,
  • isolated refers to a substance or entity that has been separated from at least some of the components with which it was associated when initially produced (whether in nature or in an experimental setting). Isolated substances and/or entities may be separated from at least about 10%, about 20%, about 30%, about 40%, about
  • isolated agents are more than about 80%, about 85%, about 90%, about 91%, about 92%, about 93%, about 94%, about
  • Inventive compounds may be combined with a pharmaceutically acceptable excipient to form a pharmaceutical composition.
  • the pharmaceutical composition includes a pharmaceutically acceptable amount of an inventive compound.
  • the amount of active ingredient which is combined with a carrier material to produce a single dosage form will vary depending upon the subject being treated, and the particular mode of administration.
  • the amount of active ingredient that is combined with a carrier material to produce a single dosage form will generally be that amount of the compound which produces a therapeutic effect. Generally, this amount will range from about 1% to about 99% of the composition, from about 5% to about 70%, or from about 10% to about 30%.
  • the present invention provides "pharmaceutically acceptable" compositions, which comprise a therapeutically effective amount of one or more of the compounds described herein, formulated together with one or more pharmaceutically acceptable carriers (additives) and/or diluents.
  • compositions of the present invention may be specially formulated for administration in solid or liquid form, including those adapted for the following: oral administration, for example, drenches (aqueous or non-aqueous solutions or suspensions), tablets, e.g., those targeted for buccal, sublingual, and systemic absorption, boluses, powders, granules, pastes for application to the tongue; parenteral administration, for example, by subcutaneous, intramuscular, intravenous or epidural injection as, for example, a sterile solution or suspension, or sustained-release formulation; topical application, for example, as a cream, ointment, or a controlled-release patch or spray applied to the skin, lungs, or oral cavity; intravaginally or intrarectally, for example, as a pessary, cream or foam; sublingually; ocularly; transdermally; or nasally, pulmonary and to other mucosal surfaces.
  • oral administration for example, drenches (aqueous or non-aqueous solutions
  • a pharmaceutical composition may further comprise an allosteric mTOR inhibitor.
  • the allosteric mTOR inhibitor is a rapalog.
  • rapalogs that may be used in accordance with the present invention include rapamycin, norrapamycin, deoxorapamycin, desmethylrapamycins, desmethoxyrapamycins, AP 22594, 28-epi-rapamycin, 24,30-tetrahydro-rapamycin, AP 23573, trans-3-aza-bicyclo[3.1.0]hexane-2-carboxylic acid rapamycin, ABT-578, SDZ RAD, CCI-779, AP 20840, AP 23464, AP23675, AP23841, TAF A93, 40-0-(2-hydroxyethyl)- rapamycin, 32-deoxorapamycin, 16-pent-2-ynyloxy-32-deoxorapamycin, 16-
  • compounds and pharmaceutical compositions of the present invention can be employed in combination therapies, that is, the compounds and pharmaceutical compositions can be administered concurrently with, prior to, or subsequent to, one or more other desired therapeutics or medical procedures.
  • the particular combination of therapies (therapeutics or procedures) to employ in a combination regimen will take into account compatibility of the desired therapeutics and/or procedures and the desired therapeutic effect to be achieved. It will also be appreciated that the therapies employed may achieve a desired effect for the same disorder (for example, an inventive compound may be administered concurrently with another anticancer agent), or they may achieve different effects (e.g., control of any adverse effects).
  • radiotherapy ⁇
  • the present invention also encompasses the use of certain cytotoxic or anticancer agents currently in clinical trials and which may ultimately be approved by the FDA (including, but not limited to, epothilones and analogues thereof and geldanamycins and analogues thereof).
  • FDA cytotoxic or anticancer agents
  • epothilones and analogues thereof include, but not limited to, epothilones and analogues thereof and geldanamycins and analogues thereof.
  • agents that may be used in combination with the inventive anticancer agents of the present invention include MEK (mitogen-activated protein kinase-kinase) inhibitors and farnesyl transferase inhibitors (for example, Zarnestra, lonafarnib, SCH44342, or Tipifarnab).
  • MEK mitogen-activated protein kinase-kinase
  • farnesyl transferase inhibitors for example, Zarnestra, lonafarnib, SCH44342, or Tipifarnab.
  • inventive compounds are useful in treating a subject in clinical remission.
  • the subject has been treated by surgery and may have limited unresected disease.
  • wetting agents emulsifiers, and lubricants, as well as coloring agents, release agents, coating agents, sweetening, flavoring and perfuming agents, preservatives and antioxidants, can also be present in the compositions.
  • antioxidants examples include water soluble antioxidants, such as ascorbic acid, cysteine hydrochloride, sodium bisulfate, sodium metabisulfite, sodium sulfite and the like; oil-soluble antioxidants, such as ascorbyl palmitate, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), lecithin, propyl gallate, alpha-tocopherol, and the like; and metal chelating agents, such as citric acid, ethylenediamine tetraacetic acid (EDTA), sorbitol, tartaric acid, phosphoric acid, and the like.
  • water soluble antioxidants such as ascorbic acid, cysteine hydrochloride, sodium bisulfate, sodium metabisulfite, sodium sulfite and the like
  • oil-soluble antioxidants such as ascorbyl palmitate, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), lecithin,
  • Formulations of the present invention include those suitable for oral, nasal, topical (including buccal and sublingual), rectal, vaginal, and/or parenteral administration.
  • the formulations may conveniently be presented in unit dosage form and may be prepared by any methods well known in the art of pharmacy. In certain embodiments, an aforementioned formulation renders orally bioavailable a compound of the present invention.
  • Methods of preparing these formulations or compositions include the step of bringing into association a compound of the present invention with the carrier and, optionally, one or more accessory ingredients. In general, the formulations are prepared by uniformly and intimately bringing into association a compound of the present invention with liquid carriers, or finely divided solid carriers, or both, and then, if necessary, shaping the product.
  • Formulations of the invention suitable for oral administration may be in the form of capsules, cachets, pills, tablets, lozenges (using a flavored basis, usually sucrose and acacia or tragacanth), powders, granules, or as a solution or a suspension in an aqueous or non-aqueous liquid, or as an oil-in-water or water-in-oil liquid emulsion, or as an elixir or syrup, or as pastilles (using an inert base, such as gelatin and glycerin, or sucrose and acacia) and/or as mouth washes and the like, each containing a predetermined amount of a compound of the present invention as an active ingredient.
  • a compound of the present invention may also be administered as a bolus, electuary, or paste.
  • the active ingredient is mixed with one or more pharmaceutically-acceptable carriers, such as sodium citrate or dicalcium phosphate, and/or any of the following: fillers or extenders, such as starches, lactose, sucrose, glucose, mannitol, and/or silicic acid; binders, such as, for example, carboxymethylcellulose, alginates, gelatin, polyvinyl pyrrolidone, sucrose and/or acacia; humectants, such as glycerol; disintegrating agents, such as agar-agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate; solution retarding agents, such as paraffin; absorption accelerators, such as quaternary ammonium compounds; wetting agents, such as, for example, cetyl alcohol, g
  • compositions may also comprise buffering agents.
  • Solid compositions of a similar type may also be employed as fillers in soft and hard-shelled gelatin capsules using such excipients as lactose or milk sugars, as well as high molecular weight polyethylene glycols and the like.
  • a tablet may be made by compression or molding, optionally with one or more accessory ingredients.
  • Compressed tablets may be prepared using binder (for example, gelatin or hydroxypropylmethyl cellulose), lubricant, inert diluent, preservative, disintegrant (for example, sodium starch glycolate or cross-linked sodium carboxymethyl cellulose), surface-active or dispersing agent.
  • Molded tablets may be made in a suitable machine in which a mixture of the powdered compound is moistened with an inert liquid diluent.
  • the tablets, and other solid dosage forms of the pharmaceutical compositions of the present invention may optionally be scored or prepared with coatings and shells, such as enteric coatings and other coatings well known in the pharmaceutical-formulating art. They may also be formulated so as to provide slow or controlled release of the active ingredient therein using, for example, hydroxypropylmethyl cellulose in varying proportions to provide the desired release profile, other polymer matrices, liposomes and/or microspheres. They may be formulated for rapid release, e.g., freeze-dried.
  • compositions may be sterilized by, for example, filtration through a bacteria-retaining filter, or by incorporating sterilizing agents in the form of sterile solid compositions that can be dissolved in sterile water, or some other sterile injectable medium immediately before use.
  • These compositions may also optionally contain opacifying agents and may be of a composition that they release the active ingredient(s) only, or preferentially, in a certain portion of the gastrointestinal tract, optionally, in a delayed manner.
  • embedding compositions that can be used include polymeric substances and waxes.
  • the active ingredient can also be in micro-encapsulated form, if appropriate, with one or more of the above-described excipients.
  • Liquid dosage forms for oral administration of the compounds of the invention include pharmaceutically acceptable emulsions, microemulsions, solutions, suspensions, syrups and elixirs.
  • the liquid dosage forms may contain inert diluents commonly used in the art, such as, for example, water or other solvents, solubilizing agents and emulsifiers, such as ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor, and sesame oils), glycerol, tetrahydrofuryl alcohol, polyethylene glycols and fatty acid esters of sorbitan, and mixtures thereof.
  • inert diluents commonly used in the art, such as, for example, water or other solvents, solubilizing agents
  • the oral compositions can also include adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, coloring, perfuming and preservative agents.
  • adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, coloring, perfuming and preservative agents.
  • Suspensions in addition to the active compounds, may contain suspending agents as, for example, ethoxylated isostearyl alcohols, polyoxyethylene sorbitol and sorbitan esters, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar-agar and tragacanth, and mixtures thereof.
  • suspending agents as, for example, ethoxylated isostearyl alcohols, polyoxyethylene sorbitol and sorbitan esters, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar-agar and tragacanth, and mixtures thereof.
  • Formulations of the pharmaceutical compositions of the invention for rectal or vaginal administration may be presented as a suppository, which may be prepared by mixing one or more compounds of the invention with one or more suitable nonirritating excipients or carriers comprising, for example, cocoa butter, polyethylene glycol, a suppository wax or a salicylate, and which is solid at room temperature, but liquid at body temperature and, therefore, will melt in the rectum or vaginal cavity and release the active compound.
  • suitable nonirritating excipients or carriers comprising, for example, cocoa butter, polyethylene glycol, a suppository wax or a salicylate, and which is solid at room temperature, but liquid at body temperature and, therefore, will melt in the rectum or vaginal cavity and release the active compound.
  • Formulations of the present invention which are suitable for vaginal administration also include pessaries, tampons, creams, gels, pastes, foams or spray formulations containing such carriers as are known in the art to be
  • Dosage forms for the topical or transdermal administration of a compound of this invention include powders, sprays, ointments, pastes, creams, lotions, gels, solutions, patches and inhalants.
  • the active compound may be mixed under sterile conditions with a pharmaceutically-acceptable carrier, and with any preservatives, buffers, or propellants which may be required.
  • the ointments, pastes, creams and gels may contain, in addition to an active compound of this invention, excipients, such as animal and vegetable fats, oils, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zinc oxide, or mixtures thereof.
  • excipients such as animal and vegetable fats, oils, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zinc oxide, or mixtures thereof.
  • Powders and sprays can contain, in addition to a compound of this invention, excipients such as lactose, talc, silicic acid, aluminum hydroxide, calcium silicates and polyamide powder, or mixtures of these substances.
  • Sprays can additionally contain customary propellants, such as chlorofluorohydrocarbons and volatile unsubstituted hydrocarbons, such as butane and propane.
  • Transdermal patches have the added advantage of providing controlled delivery of a compound of the present invention to the body. Dissolving or dispersing the compound in the proper medium can make such dosage forms. Absorption enhancers can also be used to increase the flux of the compound across the skin. Either providing a rate controlling membrane or dispersing the compound in a polymer matrix or gel can control the rate of such flux.
  • compositions of this invention suitable for parenteral administration comprise one or more compounds of the invention in combination with one or more pharmaceutically-acceptable sterile isotonic aqueous or nonaqueous solutions, dispersions, suspensions or emulsions, or sterile powders which may be reconstituted into sterile injectable solutions or dispersions just prior to use, which may contain sugars, alcohols, antioxidants, buffers, bacteriostats, solutes which render the formulation isotonic with the blood of the intended recipient or suspending or thickening agents.
  • aqueous and nonaqueous carriers examples include water, ethanol, polyols (such as glycerol, propylene glycol, polyethylene glycol, and the like), and suitable mixtures thereof, vegetable oils, such as olive oil, and injectable organic esters, such as ethyl oleate.
  • polyols such as glycerol, propylene glycol, polyethylene glycol, and the like
  • vegetable oils such as olive oil
  • injectable organic esters such as ethyl oleate.
  • Proper fluidity can be maintained, for example, by the use of coating materials, such as lecithin, by the maintenance of the required particle size in the case of dispersions, and by the use of surfactants.
  • compositions may also contain adjuvants such as preservatives, wetting agents, emulsifying agents and dispersing agents. Prevention of the action of microorganisms upon the subject compounds may be ensured by the inclusion of various antibacterial and antifungal agents, for example, paraben, chlorobutanol, phenol sorbic acid, and the like. It may also be desirable to include isotonic agents, such as sugars, sodium chloride, and the like into the compositions. In addition, prolonged absorption of the injectable pharmaceutical form may be brought about by the inclusion of agents which delay absorption such as aluminum monostearate and gelatin.
  • adjuvants such as preservatives, wetting agents, emulsifying agents and dispersing agents.
  • Injectable depot forms are made by forming microencapsule matrices of the subject compounds in biodegradable polymers such as polylactide-polyglycolide. Depending on the ratio of drug to polymer, and the nature of the particular polymer employed, the rate of drug release can be controlled. Examples of other biodegradable polymers include poly(orthoesters) and poly(anhydrides). Depot injectable formulations are also prepared by entrapping the drug in liposomes or microemulsions, which are compatible with body tissue. [00188] In certain embodiments, a compound or pharmaceutical preparation is administered orally. In other embodiments, the compound or pharmaceutical preparation is administered intravenously. Alternative routes of administration include sublingual, intramuscular, and transdermal administrations.
  • the compounds of the present invention are administered as pharmaceuticals, to humans and animals, they can be given per se or as a pharmaceutical composition containing, for example, 0.1% to 99.5%, or 0.5% to 90%, of active ingredient in combination with a pharmaceutically acceptable carrier.
  • the preparations of the present invention may be given orally, parenterally, topically, or rectally. They are of course given in forms suitable for each administration route. For example, they are administered in tablets or capsule form, by injection, inhalation, eye lotion, ointment, suppository, etc. administration by injection, infusion or inhalation; topical by lotion or ointment; and rectal by suppositories. Oral administrations are preferred.
  • These compounds may be administered to humans and other animals for therapy by any suitable route of administration, including orally, nasally, as by, for example, a spray, rectally, intravaginally, parenterally, intracisternally and topically, as by powders, ointments or drops, including buccally and sublingually.
  • the compounds of the present invention which may be used in a suitable hydrated form, and/or the pharmaceutical compositions of the present invention, are formulated into pharmaceutically-acceptable dosage forms by conventional methods known to those of skill in the art.
  • Actual dosage levels of the active ingredients in the pharmaceutical compositions of this invention may be varied so as to obtain an amount of the active ingredient that is effective to achieve the desired therapeutic response for a particular patient, composition, and mode of administration, without being toxic to the patient.
  • the selected dosage level will depend upon a variety of factors including the activity of the particular compound of the present invention employed, or the ester, salt or amide thereof, the route of administration, the time of administration, the rate of excretion or metabolism of the particular compound being employed, the duration of the treatment, other drugs, compounds and/or materials used in combination with the particular compound employed, the age, sex, weight, condition, general health and prior medical history of the patient being treated, and like factors well known in the medical arts.
  • a physician or veterinarian having ordinary skill in the art can readily determine and prescribe the effective amount of the pharmaceutical composition required. For example, the physician or veterinarian could start doses of the compounds of the invention employed in the pharmaceutical composition at levels lower than that required to achieve the desired therapeutic effect and then gradually increasing the dosage until the desired effect is achieved.
  • a compound or pharmaceutical composition of the invention is provided to a subject chronically.
  • Chronic treatments include any form of repeated administration for an extended period of time, such as repeated administrations for one or more months, between a month and a year, one or more years, or longer.
  • a chronic treatment involves administering a compound or pharmaceutical composition of the invention repeatedly over the life of the subject.
  • Preferred chronic treatments involve regular administrations, for example one or more times a day, one or more times a week, or one or more times a month.
  • a suitable dose such as a daily dose of a compound of the invention will be that amount of the compound that is the lowest dose effective to produce a therapeutic effect. Such an effective dose will generally depend upon the factors described above.
  • doses of the compounds of this invention for a patient when used for the indicated effects, will range from about 0.0001 to about 100 mg per kg of body weight per day.
  • the daily dosage will range from 0.001 to 50 mg of compound per kg of body weight, and even more preferably from 0.01 to 10 mg of compound per kg of body weight.
  • lower or higher doses can be used.
  • the dose administered to a subject may be modified as the physiology of the subject changes due to age, disease progression, weight, or other factors.
  • the effective daily dose of the active compound may be administered as two, three, four, five, six, or more sub-doses administered separately at appropriate intervals throughout the day, optionally, in unit dosage forms.
  • a compound of the present invention While it is possible for a compound of the present invention to be administered alone, it is preferable to administer the compound as a pharmaceutical formulation (composition) as described above.
  • the compounds according to the invention may be formulated for administration in any convenient way for use in human or veterinary medicine, by analogy with other pharmaceuticals.
  • kits comprising pharmaceutical compositions of an inventive compound.
  • such kits including the combination of an inventive compound and another chemotherapeutic agent.
  • the agents may be packaged separately or together.
  • the kit optionally includes instructions for prescribing the medication.
  • the kit includes multiple doses of each agent.
  • the kit may include sufficient quantities of each component to treat a subject for a week, two weeks, three weeks, four weeks, or multiple months.
  • the kit may include a full cycle of chemotherapy. In certain embodiments, the kit includes multiple cycles of chemotherapy.
  • the reaction mixture was further stirred at 100 °C a period of 8 hours after which, it was filtered and partitioned between ethyl acetate and water. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over MgSO 4 , filtered and concentrated. The crude product was purified by flash column chromatography using a 97:3 v/v CH 2 Cl 2 : EtOH as solvent to afford title compound (64 mg, 64 % yield) as a yellow solid.
  • the aqueous layer was adjusted with 1 N HCl to about pH3 and extracted with CH 2 Cl 2 (5 mL x 3). The combined organic layer was washed with brine (20 mL) and dried over Na 2 SO 4 . After removal of solvent under vacuum, the resulting residue was used for the next step without further purification.
  • HEK-293T cell lines that stably express N-terminally FLAG-tagged Raptor, Rictor or mLST8. Stable low- expression of these components has the useful effect of maintaining stoichiometry with endogenous complex components.
  • FLAG-Raptor expressing cell lines were used to specifically purify mTORCl
  • FLAG-Rictor expressing cell lines were used to purify mT0RC2
  • FLAG-mLST8 cell lines were used purify a mixture of mTORCl/2.
  • Each cell line was produced by infecting HEK-293T cells with the respective VSVG-pseudotyped MSCV retrovirus.
  • the complex was purified by lysing cells using a 0.4% CHAPS-based lysis buffer: 5OmM Hepes pH 7.4, 10OmM NaCl, 0.5mM EDTA, 0.5mM EGTA 0.4% CHAPS. Concentrations of CHAPS above 5% disrupt complex integrity and concentrations below 0.1% result in inefficient protein extraction. Detergents such as Triton-X100 and NP -40 also disrupt complex integrity and are not optimal. Cells were lysed at 4 °C for 30 min, and the insoluble fraction was removed by microcentrifugation at 13,000 RPM for 10 min.
  • HA-GST pRK5 vector modified so as to contain a PreScission protease site (GE Healthcare) between the GST tag and the initiator codon of S6K1.
  • the expression construct was transfected into HEK293T cells using FuGENE 6, and after 48 hr the cells were treated with 20 ⁇ M LY294002 for 1 hr prior to cell harvesting and lysis.
  • HA-GST-PreSciss-S6Kl or Akt/PKB was purified using glutathione-agarose and the affinity tag removed with the PreScission protease.
  • S6K1 or Akt/PKB was separated from free GST by gel filtration on a HiLoad 16/60 Superdex 200 column (GE Healthcare) and the purified protein stored at -80 °C in 20% glycerol.
  • Rhebl cDNA in HA-GST-pRK5 was transfected as above into HEK293T cells.
  • Cells were lysed with lysis buffer described above, but without EDTA and containing 5 mM MgCl 2 , and cleared lysates were incubated with immobilized glutathione for 2 hr at 4 °C.
  • Beads were washed twice with lysis buffer and once with storage buffer (20 mM HEPES pH 8.0, 200 mM NaCl, and 5 mM MgCl 2 ). GST-rhebl was then eluted from the beads with 10 mM glutathione in storage buffer.
  • Purified soluble mTORCl/2 was assayed in eppendorf tubes, standard 96- well and 384-well plate format as follows: purified mTORCl/2 was combined with purified S6K or Akt/PKB (and, optionally, Rheb) in reaction buffer (25 mM Hepes pH 7.4, 50 mM KCl, 10 mM MgC12) and aliquoted into individual wells. 100 uM ATP and test compound were added to each well, and reactions were allowed to proceed at 25 °C for 30min. Reactions were stopped by the addition of cold PBS and EDTA to a final concentration of 15 mM.
  • reaction buffer 25 mM Hepes pH 7.4, 50 mM KCl, 10 mM MgC12
  • Reaction mixture was then transferred to MaxiSorp (NUNC) 384-well high-protein binding plates and incubated for 1 h at 25 °C with gentle shaking. Wells were then aspirated and blocked with 5% BSA/PBST for 1 h at 25 °C. Block was then aspirated and wells were incubated with primary antibody specific for phospho-Akt S473 or phospho-S6K T389 (Cell Signaling Technology) in 5% BSA/PBST for 1 h at 25 °C. Antibody mix was aspirated, and plates were washed 4X with PBST.
  • This assay is also compatible with other common high-throughput screen technologies, such as LanthaScreen (Invitrogen).
  • C-terminal EGFP-tagged rat S6K and mouse Akt/PKB are cloned into an HA-GST pRK5 vector, GST-purified as described above, and used as substrates in kinase reactions.
  • terbium- labelled phospho-Akt S473 or phospho-S6K T389 IgG are added to the terminated reaction. Following incubation, the amount of bound IgG is quantitated by TR-FRET.
  • FIG. 2C depicts FLAG-purified mTORCl and mTORC2 phosphorylation of p70 S6K and AKTl, respectively, using a representative compound of formula I as a test compound.
  • mTORCl/2 complexes were purified from cells expressing FLAG-Raptor or FLAG-Protor and used to phosphorylate p70 S6K or AKTl, respectively, in in vitro kinase assays. Reactions were conducted in the presence of increasing concentrations of a mTOR-specific inhibitor of formula I, as indicated. Reactions were then analyzed by western blot and probed using antibodies specific for phosphorylated and non- phosphorylated S6K and AKTl.

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IL212415A (en) 2015-06-30
EP2350053A4 (de) 2012-05-23
WO2010044885A2 (en) 2010-04-22
EP2350053B1 (de) 2013-12-11
WO2010044885A3 (en) 2010-09-02
IL212415A0 (en) 2011-06-30
US8394818B2 (en) 2013-03-12
CN102256966B (zh) 2016-02-10
CN102256966A (zh) 2011-11-23
US20110288091A1 (en) 2011-11-24
US8889706B2 (en) 2014-11-18
US20130072485A1 (en) 2013-03-21

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